1. Department of Microbial Pathogens and Immunity, Rush University Medical Center, Chicago, Illinois, USA
2. Department of Medical Microbiology and Immunology, Creighton University School of Medicine, Omaha, Nebraska, USA
3. Deptartments of Medicine and Biomedical Sciences, Research Division of Immunology Cedars-Sinai Medical Center, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California, USA
4. Department of Chemistry, Creighton University College of Arts and Sciences, Omaha, Nebraska, USA